Lincoln Electric IM910 Installation, Safety Precautions, Location, High Frequency Protection

A-2 INSTALLATION A-2

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK CAN KILL.

• ONLY QUALIFIED PERSONNEL

SHOULD PERFORM THIS INSTALLATION.

•Turn off input power to the power source at the disconnect switch or

fuse box before working on this equipment. Turn off the input power to any other equipment connected to the welding system at the disconnect switch or fuse box before working on the equipment.

•Do not touch electrically hot parts.

•Do not touch metal portions of the LN-15 work lead clip when the welding power source is on.

•Do not connect the LN-15 to a non-Lincoln TIG power source, a SQUARE WAVE TIG power source, or a PLASMA CUTTING power source.

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LOCATION

The LN-15 should be positioned upright on a horizontal surface. Do not submerge the LN-15 in water. The best practice is to keep the wire feeder in a dry environment. When working outdoors in severe wet weather, place the LN-15 with the door facing up.

HIGH FREQUENCY PROTECTION

WARNING

To prevent possible damage to the LN-15, do not connect the LN-15 to non-Lincoln TIG or SQUARE WAVE power sources. TIG high frequency should never be applied to the LN- 15.

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Locate the LN-15 away from radio controlled machin- ery. The normal operation of the LN-15 may adversely affect the operation of RF controlled equipment, which may result in bodily injury or damage to the equipment total.

WELD CABLE CONNECTIONS

WARNING

ELECTRIC SHOCK CAN KILL.

•Only a qualified electrician should

connect the electrode leads to the LN - 15 . Connections should be made in accordance with all local and national electrical codes . Failure to do so may result in bodily injury or death.

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The size of the electrode cable and work cable must be sufficient for the maximum weld current and total cable length used. To avoid interference problems with other equipment and to achieve the best possible operation, route all cables directly to the work or wire feeder. Avoid excessive lengths and do not coil excess cable. Be sure the connection to the work makes tight metal-to-metal electrical contact. (See Table A.1)

TABLE A.1

Weld Current		Total Cable Length
60% Duty	(electrode cable + work cable)
Cycle	50 - 100'	100 - 150'	150 - 200'	200 - 250'
	(15-30 m)	(30 - 46m)	(46 - 61m)	(61m - 76m)
200 Amps	2 AWG	2 AWG	1 AWG	1/0
300 Amps	1 AWG	1 AWG	1/0	2/0
400 Amps	2/0	2/0	3/0	3/0

LN-15 CONTROL CABLE MODEL (CE)